// 云函数入口文件
const cloud = require('wx-server-sdk')
const mysql = require('mysql2/promise')

cloud.init()

// 云函数入口函数
exports.main = async (event, context) => {
  var studentID = event.studentID;
  var phones = event.phones;

  try {
    const connection = await mysql.createConnection({
      host: "47.115.22.254",
      port: 3306,
      database: "EPMS",
      user: "root",
      password: "1234"
    })
    var sql = 'UPDATE SUSER SET phone= "' + phones + '" WHERE studentID="'+studentID+'";';
    await connection.execute(sql);
    return sql;
    conection.end()
  } catch (err) {
    return err
  }
}